APR Formula:
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The Annual Percentage Rate (APR) represents the true cost of borrowing, including interest and fees, expressed as a yearly rate. It provides a standardized way to compare loan offers.
The calculator uses the APR formula:
Where:
Explanation: The equation calculates the annualized cost of credit as a percentage of the principal amount.
Details: APR helps borrowers compare different loan offers on an equal basis, revealing the true cost of loans that might have different fee structures or payment schedules.
Tips: Enter the monthly payment amount, number of months in the loan term, and the principal amount. All values must be positive numbers.
                    Q1: How is APR different from interest rate?
                    A: Interest rate only reflects the cost of borrowing principal, while APR includes fees and other loan costs.
                
                    Q2: What is a good APR?
                    A: This depends on creditworthiness and loan type. As of 2023, average APRs range from 3-5% for mortgages to 15-25% for credit cards.
                
                    Q3: Does this calculator work for credit cards?
                    A: This simplified calculator is best for installment loans. Credit card APRs involve more complex calculations.
                
                    Q4: Why does my calculated APR differ from the lender's stated APR?
                    A: Lenders may include additional fees in their APR calculation that aren't accounted for in this basic formula.
                
                    Q5: Can APR be negative?
                    A: Normally no, unless you're receiving a rebate or other benefit that makes the total cost negative.